摘要
采用分布式水文模型对暴雨内涝过程进行了建模分析,以降雨、产流、汇流、排水、积水为序,计算出不同降雨强度下、不同渍水点处积水信息的时序结果。通过对贵阳市花溪区实验区域进行建模,并对有无建筑物约束情况下的积水扩散进行对比实验,结果显示存在建筑物约束情况下的积水扩散实验更符合实际的积水淹没效果。该模型能够对水务、交通等相关部门的科学决策起到基础支撑作用,更加满足海绵城市对城市治涝的需求。
In order to deeply study the development process of urban waterlogging,we used the distributed hydrological model to analyze the rainstorm waterlogging process.We used this model to calculate the time series results of ponding information at different waterlogging points un-der different rainfall intensities in the order of rainfall,runoff generation,confluence,drainage and ponding.Taking Huaxi District of Guiyang City as the experimental area,we made a comparative experiment on the diffusion of ponding with or without building constraints.The experi-mental results show that the ponding diffusion experiment with building constraints is more in line with the actual ponding inundation effect.The model can play a basic supporting role in the scientific decision-making of water affairs,transportation and other relevant departments,and more meet the needs of sponge city for urban waterlogging control.
作者
陈卓
孙建军
CHEN Zhuo;SUN Jianjun(Academy of Prospecting of Tianjin,Tianjin 300191,China)
出处
《地理空间信息》
2022年第8期105-108,122,共5页
Geospatial Information
基金
天津市重点研发计划院市合作计划项目(18YFYSZC00120)。
关键词
积水预测
分布式水文模型
城市暴雨积水
waterlogging forecasting
distributed hydrological model
urban storm water
rainfall intensity
